The officially official Devuan Forum!

after installation?

I did reinstall.

Absolutely minimal (533 Mb 32 bit, in German).

I did only use wireless at installations time.

The installation installs a lot of stuff I never will use on a server (dictionaries and spells, more than only one) but I don't find some spontan usuable way to restart internet (it was IN at installation's time!)...

The seemingly lacking space between -i and wlan0 or between -c and /etc is not a typo, it has to be that way.Depending on your wireless card, you might need to replace the wext part with another driver, such as nl80211.